Absorbent pad holder and containment system

ABSTRACT

An absorbent pad holder and containment system includes a frame that can be adjustable in length on all sides to accommodate a varying range of absorbent pad dimensions. The frame design allows the absorbent area of the pad to remain flat while the ramped perimeter design of the frame and the corner attachment system holds the outer edge of the absorbent pad into an upward position. This creates a containment barrier for liquid that would normally flow over the edge of the pad and onto the floor surface. The perimeter design of the liner keeps the pad centered and provides flow of all liquid landing on the pad within the absorbent area of the pad.

CROSS-REFERENCE TO RELATED APPLICATIONS

This application is a continuation-in-part of U.S. patent application Ser. No. 15/838,116, filed Dec. 11, 2017, the contents of each are herein incorporated by reference.

BACKGROUND OF THE INVENTION 1. Field of the Invention

Embodiments of the invention relates generally to liquid or spill containment. More particularly, the invention relates to an absorbent pad holder that allows the absorbent area of an absorbent pad to remain flat while the ramped perimeter design of the frame and the corner attachment system holds the outer edge of the absorbent pad into an upward position.

2. Description of Prior Art and Related Information

The following background information may present examples of specific aspects of the prior art (e.g., without limitation, approaches, facts, or common wisdom) that, while expected to be helpful to further educate the reader as to additional aspects of the prior art, is not to be construed as limiting the present invention, or any embodiments thereof, to anything stated or implied therein or inferred thereupon.

Absorbent pads are designed to catch liquids and absorb them into the pad itself, preventing liquids from reaching floor surfaces. A common problem is liquid contacting the pad too close to the edge, or in too much quantity, will run off the pad and onto the floor.

Current solutions to this spillover/holder problem are bulky, tub-style containment vessels with a mechanism for holding the absorbent pad in place within the tray. The current solutions are large, bulky, highly visible and time consuming to assemble, use and refill. The current products that have a liquid containment capability are considered drain pans or trays, with the primary function of holding the absorbent pad in place using a mechanical holding or attachment mechanism. The current products do not prevent the liquid from flowing off the pad and into or on the device itself.

A secondary problem with current solutions is that they are not adjustable in size to work with a wide range of absorbent pad sizes and proportions.

FIGS. 1 through 5 shows various conventional adsorbent pad frames 100, 102, 104, 106, 108. These frames, as discussed above, are bulky and are designed to have the absorbent pad placed inside. The side members are typically obtrusive and create a visibly unappealing display. Some conventional pad designs, especially those of FIG. 2, for example, create a confined space and/or require the animal to step up, making compliance with the use of the pad more difficult.

In view of the foregoing, there is a need for an improved absorbent pad frame assembly that addresses many of the above described problems with currently available solutions.

SUMMARY OF THE INVENTION

Embodiments of the present invention provide a frame for holding an absorbent pad, comprising a plurality of side members; a plurality of corner members connecting adjacent side members to form a closed loop having an open central region; a first retention member disposed in each of the corner members; and a hinged connector having a second retention member engaging into and releasing from the first retention member to hold the absorbent pad therebetween, wherein the plurality of side members includes a sloped surface sloping upward from the open central region.

Embodiments of the present invention further provide a fluid containment device comprising a plurality of side members, each of the side members having an adjustable length, wherein each of the plurality of side members includes a sloped surface sloping upward from an open central region defined inside a shape formed by interconnecting the plurality of side members with a plurality of corner members, wherein the side members include an inner side member telescoping inside an outer side member; an absorbent pad fitting inside the open central region and extending up on top of the sloped surface of each of the plurality of side members; a first retention member disposed in each of the corner members; a hinged connector having a second retention member engaging into and releasing from the first retention member to hold the absorbent pad therebetween, wherein the absorbent pad being secured between the first and second retention members, thereby retaining the absorbent pad therein; and a resilient tab having a protrusion on an underside thereof, where the protrusion fits into notches formed in the inner side member to lock a telescoping action between the inner side member and the outer side member.

Embodiments of the present invention also provide a frame for holding an absorbent pad, comprising a plurality of side members; a plurality of corner members connecting adjacent side members to form a closed loop having an open central region;

a first retention member disposed in each of the corner members; a hinged connector having a second retention member engaging into and releasing from the first retention member to hold the absorbent pad therebetween, wherein the plurality of side members includes a sloped surface sloping upward from the open central region; each of the side members have open ends configured to receive a tongue member below the sloped surface thereof, the tongue member extending from one of a corner member or a coupling member; and the side members include a hole formed therein, the hole configured to receive a protrusion formed on the tongue member when the side member is fully inserted into one of the corner member or the coupling member.

In some embodiments, an anti-slip material on a bottom surface of the corner members and/or the side members to prevent slippage or sliding of the frame on a surface, such as a floor surface.

In some embodiments, at least 50% of the sloped surfaces of the plurality of side members is covered with the absorbent pad edges.

In some embodiments, all of the sloped surfaces are covered with the absorbent pad edges.

In some embodiments, the escape of pooling the fluid contained within the sloped surfaces when the fluid is disposed on the absorbent pad at a rate faster than can be absorbed thereby is prevented due to the absorbent pad being placed along the sloped surfaces of the side members.

These and other features, aspects and advantages of the present invention will become better understood with reference to the following drawings, description and claims.

BRIEF DESCRIPTION OF THE DRAWINGS

Some embodiments of the present invention are illustrated as an example and are not limited by the figures of the accompanying drawings, in which like references may indicate similar elements.

FIGS. 1 through 5 show various conventional absorbent pad retaining devices according to the prior art;

FIG. 6 is a perspective view of an absorbent pad frame according to an exemplary embodiment of the present invention;

FIG. 7A is an end perspective view of the absorbent pad frame of FIG. 6, with the absorbent pad installed;

FIG. 7B is a cross sectional view of the absorbent pad frame and installed absorbent pad of FIG. 7A;

FIG. 8 is a perspective view of an absorbent pad frame according to an exemplary embodiment of the present invention;

FIG. 9 is a perspective view of a side and corner member of the absorbent pad frame of FIG. 8;

FIG. 10 is a top view of the side and corner member of FIG. 9;

FIG. 11 is a detailed view of the side and corner member of FIG. 9;

FIG. 12 is another detailed view of the side and corner member of FIG. 9;

FIG. 13 is a top view of a side member of the absorbent pad frame of FIG. 8;

FIG. 14 is a perspective view of the side member of FIG. 13;

FIG. 15 is a bottom perspective view of a corner closure member of the absorbent pad frame of FIG. 8;

FIG. 16 is a front end view of a telescoping adjustment lock member of the absorbent pad frame of FIG. 8;

FIG. 17 is a bottom view of the telescoping adjustment lock member of FIG. 16;

FIG. 18 is an exploded perspective view of an extender installed in the absorbent pad frame of FIG. 8;

FIG. 19 is a detailed perspective view of a telescoping adjustable length frame side member according to an exemplary embodiment of the present invention;

FIG. 20 is partial perspective view of a telescoping adjustable length frame;

FIG. 21 is a top view of a variable size frame assembly according to an exemplary embodiment of the present invention;

FIG. 22 is a detailed perspective view of a corner of the frame assembly of FIG. 21;

FIG. 23 is a detailed perspective view of a corner of the frame assembly of FIG. 21 with a frame segment partially cut away at a coupling member thereof;

FIG. 24 is a detailed perspective view of a corner of the frame assembly of FIG. 21;

FIG. 25 is a bottom side view of a corner of the frame assembly of FIG. 21, with a portion of a frame segment partially cut away to illustrate a corner coupling member thereof;

FIG. 26 is a bottom view of a coupling member of the frame assembly of FIG. 21, with a portion of the frame segments cut away to better illustrate the coupling member; and

FIG. 27 is a detailed view of a corner member with the pad securing member in an upright position.

Unless otherwise indicated illustrations in the figures are not necessarily drawn to scale.

The invention and its various embodiments can now be better understood by turning to the following detailed description wherein illustrated embodiments are described. It is to be expressly understood that the illustrated embodiments are set forth as examples and not by way of limitations on the invention as ultimately defined in the claims.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS AND BEST MODE OF INVENTION

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term “and/or” includes any and all combinations of one or more of the associated listed items. As used herein, the singular forms “a,” “an,” and “the” are intended to include the plural forms as well as the singular forms, unless the context clearly indicates otherwise. It will be further understood that the terms “comprises” and/or “comprising,” when used in this specification, specify the presence of stated features, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, steps, operations, elements, components, and/or groups thereof.

Unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one having ordinary skill in the art to which this invention belongs. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the relevant art and the present disclosure and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.

In the following description, for purposes of explanation, numerous specific details are set forth in order to provide a thorough understanding of the present invention. It will be evident, however, to one skilled in the art that the present invention may be practiced without these specific details.

The present disclosure is to be considered as an exemplification of the invention, and is not intended to limit the invention to the specific embodiments illustrated by the figures or description below.

As is well known to those skilled in the art, many careful considerations and compromises typically must be made when designing for the optimal configuration of a commercial implementation of any system, and in particular, the embodiments of the present invention. A commercial implementation in accordance with the spirit and teachings of the present invention may be configured according to the needs of the particular application, whereby any aspect(s), feature(s), function(s), result(s), component(s), approach(es), or step(s) of the teachings related to any described embodiment of the present invention may be suitably omitted, included, adapted, mixed and matched, or improved and/or optimized by those skilled in the art, using their average skills and known techniques, to achieve the desired implementation that addresses the needs of the particular application.

Broadly, embodiments of the present invention provide an absorbent pad holder and containment system that includes a frame that can be adjustable in length on all sides to accommodate a varying range of absorbent pad dimensions. The frame design allows the absorbent area of the pad to remain flat while the ramped perimeter design of the frame and the corner attachment system holds the outer edge of the absorbent pad into an upward position. This creates a containment barrier for liquid that would normally flow over the edge of the pad and onto the floor surface. The perimeter design of the liner keeps the pad centered and provides flow of all liquid landing on the pad within the absorbent area of the pad.

Referring now to FIG. 6, an absorbent pad frame 10, or simple frame 10, can include a plurality of telescoping side members 12, 14 that may provide for adjustability of the dimensions of the frame 10 to support various sizes of absorbent pads. The side members 12, 14 can include sloped surfaces 12A, 14A that slope inward. The sloped surfaces 12A, 14A may slope upward at an angle from about 10 degrees to about 45 degrees, for example.

Corner members 40 may connect the side members 12, 14 to form the frame 10 having an outer perimeter and an open central region 42. In the embodiment of FIG. 6, the corner members connect the side members 12, 14 at a substantially 90-degree angle. However, other angles are contemplated within the scope of the present invention. For example, the frame 10 may be formed as an octagon with the corner members 40 forming a 45-degree angle. Regardless of the shape, the side members 12, 14 may be adjustable in size to allow for different dimensions.

Each corner member 40 can include a connection that includes a fitting 18 formed in the corner member 40 with a hinged connector having a connector 16 fitting into the corner member fitting 18. Each connector 16 can include a shaped lever member 22 for assisting a user to release the connector 16 from the corner member fitting 18 when an absorbent pad edge 24A is sandwiched therebetween as shown in FIG. 7A. In some embodiments, especially where the side members 12, 14 are long (such as over 24 or 36 inches), a receptacle, similar to receptacle 18, may be formed along the side members 12, 14 with a hinged connector 16 fitting therein, thereby providing additional support to the absorbent pad edges 24A when assembled as shown in FIGS. 7A and 7B.

Referring to FIGS. 6, 7A and 7B, an absorbent pad 24 can be placed in the open central region 42 and the frame 10 can be adjusted so that the absorbent pad edges 24A are disposed along the sloped surfaces 12A, 14A of the side members 12, 14 (see FIG. 6). Typically, the absorbent pad edges 24A extend from about 50 to about 100% of the width of the sloped surfaces 12A, 14A, where an uncovered region 12B of the side members 12, 14 is typically less than ½ inch, even more typically less than ¼ inch. In some embodiments, the sloped surface 12A, 14A may be about ¾ to about 1.5 inches wide, terminating at a height of about ½ inch to about 1.5 inches off the floor surface.

The side members 12, 14 may adjust in various manners as may be understood by one skilled in the art. As discussed in greater detail below, the side members 12, 14 may telescope or slide along-side each other. In some embodiments, a toothed track may be disposed on one of the side members 12, 14 to provide resistance from the side members 12, 14 freely sliding against each other. Other mechanisms, such as tabs, slide locks, protrusions, buttons, and the like, may be used to provide size adjustments at regular intervals.

In some embodiments, at least a portion of a bottom surface of at least the corner members 40 may include a slip resistant coating, such as a rubber coating, footing, insert, pad, or the like. This coating on the bottom surface may help prevent slippage of the frame 10 on a floor surface.

Referring now to FIGS. 8 through 17, an exemplary design of an absorbent pad frame 80 is shown. While these drawings show specific examples, the present invention is not meant to be limited to the specifics shown in these Figures and described below.

FIG. 8 shows the frame 80 in its assembled form. A side and corner member 82 may include an inner frame member 88 attached to a corner 86. In some embodiments, the inner frame member 88 and the corner 86 may be formed as in integral member, while in other embodiments, the inner frame member 88 may be removably attached to the corner 86 by various means as may be known in the art. The inner frame member 88 may include a scale 90 disposed thereupon. The scale 90 may indicate, for example, the size of the absorbent pad that can fit within the frame 80.

An outer frame member 84 may be removable attached to the corner 86 of the frame and corner member 82, as discussed in greater detail below. The inner frame member 88 of the side and corner member 82 can telescoping engage into the outer frame member 84 to permit size adjustment of the frame 80. A locking tab 96, as described below, can lock the inner frame member 88 and the outer frame member 84 to a desired size.

FIGS. 9 and 10 show detail views of the side and corner member 82. A textured surface 104 may be provided along an outer side surface 94 (see FIG. 8) to engage the locking tab 94. A pad securing member receptacle 100 may hingingly receive a portion of a pad securing member 92 therein. A hole 102 in the corner 86 may receive a pin 134 (see FIG. 13) of the outer frame member 84. Slots 98 may be formed in the corner 86 to receive protrusions 154 (see FIG. 15) of the pad securing member 92. In some embodiments, a slip resistant member 106 may be disposed on a bottom side of the corner 86.

FIGS. 11 and 12 show detail views of the corner 86 of the side and corner member 82. The pad securing member receptacle 100 can include an opening 110 to receive a pin 152 (see FIG. 15) of the pad securing member 92. The outer frame member 84 can be inserted into a slot 112 of the corner 86, as shown in FIG. 12.

The outer frame member 84 can include an insertion end 132 having a resiliently bending member 136 having a pin 134 that fits into the opening 102 (see FIG. 11) of the corner 86 of the side and corner member 82. A locking tab mount 130 can be disposed at an end opposite the insertion end 132 for receiving a locking tab 170 (see FIG. 17) therein. The inner frame member 88 can telescopingly fit into an opening 138 as shown in FIG. 14.

FIG. 15 shows the pad securing member 92 that can include pin extensions 150 to support pins 152 that fit into the openings 110 in the pad securing member receptacle 100 as shown in FIGS. 11 and 12. A bottom side 156 of the pad securing member 92 can include protrusions 154 that fit into the slots 98 of the corner, as described above, where a pad, as discussed, can be sandwiched between the pad securing member 92 and the corner 86 to secure the pad to the frame 80.

FIGS. 16 and 17 show an example of a locking tab 170 (also described as locking tab 96, above) that has pins 172 that can fit into the locking tab mount 130 of the outer frame member 84. A locking tab textured surface 176 can engage the textured surface 104 of the inner frame member 88 for locking the telescoping action between the inner frame member 88 and the outer frame member 84. A main body 174 of the locking tab 170 provides a surface for locking and unlocking the locking tab 170. In some embodiments, the main body 174 may be twisted as shown in FIG. 16, to ease the use thereof.

Referring now to FIG. 18, in some embodiments, an extension member 180 can fit into the corner 86 of the side and corner member 82. The extension member 180 can include a pin 184 on a resiliently deforming tongue 186 for engagement into the hole 102 of the corner. The extension member 180 can include its own hole 182 for engagement with the pin 134 of the outer frame member 84. The length of the extension member 180 can vary, depending on application. In some embodiments, multiple extension members may be used end to end to provide an even longer size.

The frame 10 may be made from various materials. For example, the frame 10 may be formed from a durable plastic, metal, wood, composites, or combinations thereof, or the like. The frame 10 may be user-assembled by connecting each of the side members into corresponding corner members to form a closed loop. In this embodiment, the frame 10 may be readily assembled and disassembled into a relatively small footprint.

Referring now to FIGS. 19 and 20, in some embodiments, a frame can be designed with a telescoping member, similar to that of FIG. 8, for example, where an insertion frame member 190 can extend from a corner member 191. A sliding frame member 196 can slide over the insertion frame member 190 to provide an adjustable length of a side portion of the frame. In some embodiments, a graduation 194 may be present on the insertion frame member 190 so that a user can easily match the size of the frame to the size of the pad to be used therein.

The sliding frame member 196 can include a flexible tongue 197 that can have a protrusion 198 extending from a bottom side thereof. The protrusion 198 may fit at least partially into indentations 195 formed along the insertion frame member 190. The protrusion 198 and indentations 195 may interact to fix the length of the frame, such that inadvertent adjustment of the frame is avoided. Accordingly, a user would need to apply pressure to move the sliding frame member 196 along the insertion frame member 190.

The corner 191 can include a pad securing member 192 can may pivot to secure a pad thereunder in a manner similar to that described above. Further, the frame members can include sloped surfaces that slope inward, similar to that described in the above embodiments. The sloped surfaces may slope upward at an angle from about 10 degrees to about 45 degrees, for example.

Referring to FIGS. 21 and 22, a frame 200 can include interconnectable frame members designed in one or more sizes. In the embodiment of FIG. 21 a first frame member 202 can have a first length, and a second frame member 204 can have a second length, where, in this particular embodiment, the second length is shorter than the first length. The first frame member 202 may be attached to another one of more of the first frame member 202 or the second frame member 204 to create a desired length of one or more sides of the frame. Similarly, the second frame member 204 may be attached to another one of more of the first frame member 202 or the second frame member 204 to create a desired length of one or more sides of the frame. While FIG. 21 shows one specific size configuration, it should be understood that the frame can be made in any combination of frame members to create a desired size.

The frame members 202, 204 can include holes 214 that are configured to receive a notch 214, 222, disposed on a resiliently deformable arm 226, 252 of a coupling member 206 or a corner member 208, respectively. Such interconnections are described in greater detail below. The holes 214 can permit the frame members 202, 204 to be attached to each other via the coupling member 206, or to a corner member 208.

The corner members 208 can include a cutout 212 formed on a top side thereof. A pad securing member 210 can be pivotably attached to the corner member 208 and can include a protrusion, such as protrusion 276, as shown in FIG. 27, for example. The protrusion 276 can press a pad (not shown) into the cutout 212, thereby securing the pad at the corners thereof. In some embodiments, the coupling members can be designed with a pad securing member similar to that used in the corner members, thereby securing the pad to the coupling members disposed along a length of the frame. In other embodiments, the frame members themselves may include the pad securing member similar to that used in the corner members, thereby permitting the pad to secure directly to the frame members.

Similar to the embodiments described above, the frame members 202, 204 can include sloped surfaces that slope inward. The sloped surfaces may slope upward at an angle from about 10 degrees to about 45 degrees, for example. The corner members 208 may include a similar slope. In this manner, when a pad is disposed over the frame members 202, 204 and the corner members 208, and the pad securing members 210 are pressed over the pad, the pad is angled inward where the pad rests on the frame members 202, 204.

Referring also to FIGS. 23 through 26, the coupling members 206 can include a central member 228 with tongue members 224 extending from each side of the central member 228. The central member 228 may be sized similar to or slightly larger than the frame members. The tongue members 224 may be sized to fit inside ends of the frame members. A resiliently deformable central arm 226 may be partially cut out of the tongue member 224 to permit deflection thereof. A protrusion 220 at the end of the central arm 226 may be resiliently deformed downward as the tongue member 224 is inserted into the frame member. When the tongue member 224 is fully inserted into the frame member, the protrusion 220 can align and extend into the hole 214 in the frame member. In this configuration, the coupling member 206 cannot be inadvertently removed from the frame member without depression of the protrusion 220 while applying a separation force.

The corner member 208 may include a tongue member 250 similar to that used for the coupling member 206. The tongue member 250 may be sized to fit inside ends of the frame members. A resiliently deformable central arm 252 may be partially cut out of the tongue member 250 to permit deflection thereof. A protrusion 222 at the end of the central arm 252 may be resiliently deformed downward as the tongue member 250 is inserted into the frame member. When the tongue member 250 is fully inserted into the frame member, the protrusion 222 can align and extend into the hole 214 in the frame member. In this configuration, the corner member 208 cannot be inadvertently removed from the frame member without depression of the protrusion 222 while applying a separation force.

As shown in FIG. 25, the corner member 208 can be reinforced with ribbing 254 to provide rigidity thereto. Such reinforcing can allow a user to apply a suitable force, such as by stepping there upon, to the pad securing member 210, which can pivot about axis 256, to secure the pad into the cutouts 212.

FIG. 27 illustrates one example of a corner member 270 that may be used in various embodiments of the frame as described herein. The corner member 270 can include a pivoting pad securing member 274 having a protrusion 276 extending from a bottom thereof. As the pad securing member 274 pivots downward, the protrusion 276 may fit into a cutout 272 formed in the corner member 270. When a pad (not shown) is disposed on top of the cutout 272, the protrusion 276 can push the pad into the cutout 272 to secure the pad to the frame.

All the features disclosed in this specification, including any accompanying abstract and drawings, may be replaced by alternative features serving the same, equivalent or similar purpose, unless expressly stated otherwise. Thus, unless expressly stated otherwise, each feature disclosed is one example only of a generic series of equivalent or similar features.

Claim elements and steps herein may have been numbered and/or lettered solely as an aid in readability and understanding. Any such numbering and lettering in itself is not intended to and should not be taken to indicate the ordering of elements and/or steps in the claims.

Many alterations and modifications may be made by those having ordinary skill in the art without departing from the spirit and scope of the invention. Therefore, it must be understood that the illustrated embodiments have been set forth only for the purposes of examples and that they should not be taken as limiting the invention as defined by the following claims. For example, notwithstanding the fact that the elements of a claim are set forth below in a certain combination, it must be expressly understood that the invention includes other combinations of fewer, more or different ones of the disclosed elements.

Insubstantial changes from the claimed subject matter as viewed by a person with ordinary skill in the art, now known or later devised, are expressly contemplated as being equivalently within the scope of the claims. Therefore, obvious substitutions now or later known to one with ordinary skill in the art are defined to be within the scope of the defined elements.

The claims are thus to be understood to include what is specifically illustrated and described above, what is conceptually equivalent, what can be obviously substituted and also what incorporates the essential idea of the invention. 

What is claimed is:
 1. A frame for holding an absorbent pad, comprising: a plurality of side members; a plurality of corner members connecting adjacent side members to form a closed loop having an open central region; a first retention member disposed in each of the corner members; and a hinged connector having a second retention member engaging into and releasing from the first retention member to hold the absorbent pad therebetween, wherein the plurality of side members includes a sloped surface sloping upward from the open central region, wherein each of the side members have ends configured to receive a tongue member therein, the tongue member extending from one of a corner member or a coupling member, and wherein each of the side members include a hole formed therein, the hole configured to receive a protrusion formed on the tongue member when the side member is fully inserted into one of the corner member or the coupling member.
 2. The frame of claim 1, where the corner member is formed integrally with one of the side members.
 3. The frame of claim 1, wherein the side members include an inner side member telescoping inside an outer side member.
 4. The frame of claim 3, wherein the inner side member is formed integrally with each of the corner members.
 5. The frame of claim 4, further comprising a resilient tab having a protrusion on an underside thereof, where the protrusion fits into notches formed in the inner side member to lock a telescoping action between the inner side member and the outer side member.
 6. The frame of claim 3, wherein the inner side member includes a graduation formed therein to indicate a size of the frame when assembled.
 7. The frame of claim 1, wherein a bottom surface of the plurality of corner members include an anti-slip material.
 8. The frame of claim 1, wherein the sloped surface has a width from about 0.75 to about 2 inches.
 9. The frame of claim 1, wherein the sloped surface creates a rise from about 0.5 inch to about 1.5 inch.
 10. The frame of claim 1, wherein the protrusion is formed on a partially cut out portion of the tongue member, wherein the partially cut out portion is resiliently deformable relative to the tongue member.
 11. The frame of claim 1, wherein sides of the frame are assembled from at least one of a first side member having a first length and a second side member having a second length.
 12. The frame of claim 1, wherein the corner members include reinforcing ribbing formed in a hollow bottom portion thereof.
 13. A frame for holding an absorbent pad, comprising: a plurality of side members; a plurality of corner members connecting adjacent side members to form a closed loop having an open central region; a first retention member disposed in each of the corner members; a hinged connector having a second retention member engaging into and releasing from the first retention member to hold the absorbent pad therebetween, wherein the plurality of side members includes a sloped surface sloping upward from the open central region; each of the side members have open ends configured to receive a tongue member below the sloped surface thereof, the tongue member extending from one of a corner member or a coupling member; and the side members include a hole formed therein, the hole configured to receive a protrusion formed on the tongue member when the side member is fully inserted into one of the corner member or the coupling member.
 14. The frame of claim 13, wherein the protrusion is formed on a partially cut out portion of the tongue member, wherein the partially cut out portion is resiliently deformable relative to the tongue member.
 15. The frame of claim 13, wherein sides of the frame are assembled from at least one of a first side member having a first length and a second side member having a second length. 